Ventilator and the like



May 31, 1927.

R. cR'rg-lwArrE f VENTILATOR AND THE LIKE 2 Sheets-Sheet 1 Filed /July 1a, 1925 May 31, 1927.

. 1,630,691 R. 1.. cRos'rHwArrE VENTILATOR AND THE LIKE Filed July 1a, 1925 z sheets-sheet 2 Cri Patented May 31, 1927.

Unirse sra'rss i "n Lezingen earner orifice.

RALPH L. CROSTHWAITQE, GF CHICAGO, ILLINOIS.

VENTLATOR AND THE LIKE.

This invention relates to improvements in ventilators and the like, and more especially to ventilators and the like especially adapted iior use with windows. rl`he invention is particularly adapted for use in connection with ventilators and the like, such as, "ror ezvainple.v screens, in connection with windows havingl sliding sashes. f

Ther invention is here shown embodied in. a device in which the ventilator consists oit a panel provided with Ventilating` louvres. lt is obvious, however, without detracting i'roni the spirit of the invention, the ventilating member may be provided with screening. netting, webbing, or termed in any other manner in order to give the desired ventilation.

My improved ventilator adapted to move upwardly and downwardly with the lower sash of the window as the same opened and closed so that the opening will always be filled by the ventilator.

One ol1 the :features of my invention is the provision of means whereby the ventilator may be readily forced downwardly, if desired, into a well or pocket below the window-sill so that the entire window opening may be obtained without obstruction.

Another fea-ture of the invention is the provision of means whereby, in the event the ventilator is pushed downwardly out of use, upon lowering the sash it will again automatically become attached to the same so that upon again raising the sash the ventilator will automatically move upwardly with it. v

Another 'feature oi? my invention is the provision ol means whereby ater the ventilator has been moved upwardly to its highest position, it will automatically become detached `from the window sash in the event it is desired to raise the sash higher'. Upon lowering the sash the ventilator will again automatically become attached to the same and move downwardly and upwardly with it.

Other features and advantages of my inw vention will appear more fully as l proceed with my specification.

In that form of device embodying the teatures ot my invention shown in rthe accompanying drawings, Figure 1 is a view in front elevation oi' my improved ventilator showing the same in use with a window having a sliding sash, F ig. 2 is a horizontal sectional view of one of the automatic catches used in connection with my device,

Appncation and my 18, i925.' serial No. 44,523.

8 is a view taken as indicated by the line 3-3 oit' Fig. l, Fie'. l is a view taken as c Z; indicated by the line l-fl ot Fig. 1.

-is shown in the drawings 10 indicates the lower sliding sash oi a window of usual construction adapted to slide in guides at the sides formed by the guide strips 11 and 12 in the usual manner. Below the window-sill 13 and in line with the guides in which the sash l() slides is provided a well or pocket; 1l in which is placed a pan 15.

16 indicates in general a ventilator adapted to slide upwardly and downwardly below the sash 10 in the saine guides in which the sash slides. The ventilator 16 as here shown comprises a rectangular frame 17 provided with horizontally arranged overlapping slanting louvre slats 18 `of the usual form. These louvre slats are arranged in order to permitthe passage of air therebetween and at the same time exclude the rain. Obvionsly, any other kind of means may be provided for alter-ting the passage of air, such as, 'for example. screening and the like.y The well or chamber 14 and pan 15 are large enough to permit the entire ventilator' 1G to slide downwardly into the well when the sash 10 is in its lowermost or closed position; so that in such case the window will be closed in the usual manner and the ventilator 16 entirely housed wit-hin the well or chamber 14.

The lower edge oi the window sash 10 and the appel' edge oi the ventilator 16 are provided with cooperating parts ot automatic catches so that normally the ventilator 16v will remain fastened to the sash and move upwardly and downwardly therewith. The catches are made, however, so that when the ventilator is in its uppermost position, as shown in VFig. 1, and it is desired to move the sash still higher said catches will automatically release. Upon again lowering the sash said catches will automatically engage when the ash comes into Contact again with the ventilator. in detail in Fig. 2. lt will be noted that the lower edge oit the window sash 10 carries a downwardly projecting pin 19 provided with a slight annular grooved recess 20. The upper edge of the ventilator 16 is provided with a socket housing two horizontally slidable bolts 21. YEach of these bolts is provided with a rounded head 22, and the same are normally urged toward each other by means of the spiral springs The parts are so spaced and proportioned that the two heads 22, 22,

One of these catches is shown v of the two bolts will yieldingly engage the annular recess 20 on the pin 19 and thus yieldingly hold the ventilator 16 attached to the sash it). When the ventilator reaches the limit ol its upward movement, further lifting ot' the sash will canse the pin 19 to be pulled out from between the heads 22, 22, of the bolts by sepa rating the same slightly against the pressure `of the springs 23, 23. When the ventilator and sashare `again brought into engagement, the head oit the pin il), which is rounded, will separate the bolts 2]., 2l until they again snap back into engagement with the annular recess Qt).

The ventilator 16 is suitably balanced by countcrweights 9A in the :lame manner as the sash ot a window. Any suitable means may be provided for limiting,- the upward movement; of the ventilator. In a device as here shown, such upward movement is limited by suitable placing of the pulley wheels 25 which carry the ropes 26 attached to the counter-weights 2li.

It is believed that the operation of the device is clear. Normally, the ventilator 16 moves upwardly and downwardly with the sash 10. In Fig. l the ventilator is shown in substantially its uppermosh position. It the sash fis raised higher, the catches disengage permittingr the window to be raised as high as desired, the ventilator 1G remaining `as itis. It desired, however, the ventilator. may be pushed downwardly with the hands completely into the well lei, so that the entire window opening may thus be obtained without any ibstruction. lVhenever the sash l() is lowered, whether the venti later is down inthe well or not, as soon as the sash comes into engagement with the ventilator, thc catches will again automatically engage so that thereafter the ventilator `will move upwardly and downwardly with the window within the limits of the movementof said ventilator. v y i While I" have shown anddescribed certain enibodiments` oit' my invention, it is under` stood that it is capable ot many modifica tions. Changes, therelore, in the construction and arrangement may be n'iadewithout departing from the spirit and scope ot the invention as disclosed in the appended Claims, in which it is my intention to claim all novelty inherent in my invention as broadly as possible in view of the prior art.

What I claim as new, and desire to secure by Letters Patent, is: i y

l. In combination with a window having,I

a sliding sash; a ventilatfn' n'iounted insaid Window for verti Vfal sliding lm )vemcnt below said sash; and meansfor detachably securinicir said ventilator to said rash, said securing' means adapted to yieldingly hold the vcntilator and sash in engagement, permit se paration thereof under tension, and automati cally engage upon the bringing olE said sash and ventilator together.

Q. ln coinbination with a window havinfr a sliding" sash; a well below the sill ot said window; a ventilator mounted in said willdow for vertical sliding increment below said sash, said ventilator adaptrvd to slide down into said well and be completely housed therein; and means for detachably securing.; said ventilator to said sash, said securing;` meansadapted to yieldingly hold the ventilater and sash in engnigjcment, permit separation thereol1 under tension, and automatically engage upon the bringgfnlevr ot said sa fh and ventilator together.

3. In combination with a window having a sliding' sash; a well below the sill o l said window; a ventilator mounted in said 'with dow for vertical sliding movement below said sash, said ventilator adapted to slide lown into said well and be completely housed therein; means tor limiting,r the upward movement ol' said ventilator; and ineanalor detach-ably` iecuring said ventilator to said sash, said securinpr means adapted to yieldingly hold the ventilator and sash in engined ment, permit separation thereof under ten sion, and automatically` engage upon the bringing ot said sash and ventilator together.

4. In combination with a wimlow ha vine' a sliding sash; a well below the sill of said window; a ventilator mounted in said wha dow for vertical slidinghr movement below said saslnsaid ventilator yznlapted to slide down into said well and be completely housed therein; means toi-:limiting y the upward moven'ient of said ventilator beyond a posi` tion in which the ventilator is just sulletnie tially eomliletely ont of said well; and means` for detachably securing said, ventilator to said sash, said securing` meam` :nlaptral to yieldingly hold the ventilator and sash in engagement, permit separat ion thereof under tension, and automatically engage upon the bringing ol said sash and ventilator together.

fitness my hand and seal this ot' July, A. D. `1925. y

RALPH L. CROSTl-HVAITE.

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